Journal of the Rubber Research Institute of Sri Lanka
Permanent URI for this collectionhttps://dl.nsf.gov.lk/handle/1/8676
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Item The effect of the container and the potting media of nursery plants on the growth of rubber plants: experience with root trainers to raise rubber plants(Rubber Research Institute:Agalawatta, 2017) Seneviratne, P.; Wijesekara, G.A.S.Item Humic acid based liquid organic fertilizer improved the growth of nursery and immature rubber plants grown in Boralu soil series(Rubber Research Institute:Agalawatta, 2013) Dharmakeerthi, R.S.; Chandrasiri, J.A.S.; Edirimanne, V.U.Item Comparison of the effectiveness of liquid and granule fertilizer mixtures on rubber plants raised by young budding technique(Rubber Research Institute. Agalawatta, 1997) Dharmakeerthi, R.S.; Yogaratnam, N.Y.; Samarappuli, L.; Silva, S.N.; Yakandawala, A.Effectiveness of granule fertilizer mixtures was compared with currently used liquid formulations on plants raised by young budding technique.Granule formulations are agronomicaly effective provided that they are applied in small quantities.Urea based mixtures was found to be comparatively mire detrimental than sulfate of ammonia based mixtures when used at concentrations higher than the recomended levels.Currently recommended fertilizer schedule with liquid formulations was the most effective programme for young budding among the treatments tested.Reduced frequency of application increased the deiback percentage significantly.However,it could be applied at two-week intervals instead of weekly intervals equally effectively,thereby reducing the application cost almost by half.